Heating food mixer



FIG. 1 is a top, front, right side perspective view of the heating food mixer comprising my new design;

FIG. 2 is a top, rear, left side perspective view thereof;

FIG. 3 is an exploded perspective view thereof shown from the top, front, and right side;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a right side view thereof.

The bottom and color form no part of the claimed design.

The broken lines shown in FIGS. 1-3 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for the heating food mixer, as shown and described. 